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. Shqets-Sheet 1. A. 'P. BALD-WIN T. L. SEDGWIQK. MACHINE FORSTRAIGHTBNING AND POLISHING METALLIC SHAFTING.

(No' Model.)

No. 378,063. Patented Feb. 14, 1888.

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(No M0881. 3 Sheets-Sheet 3. A. P. BALDWIN & T. L. SEDGWIGK, 8.M'AQHI'NE FOR STRAIGHTENING .AND POLISHING METALLIC SHAPTING.

No.878g088. Patented Feb. '14, 1888.

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UNirno STATES PATE T FFICE.

AARON P. BALDWIN AND THOMAS L. SEDGWICK, OF AKRON, OHIO, AssIcN ORs ToTHE AKRON IRON COMPANY, OF sAME PLACE.

MACI-llNE FOR STRAIGHTENING AND POLISHING METALLIC SHAFTING.

SPECIFICATION forming part of Letters Patent No. 378.063, dated February14, 1888.

Application filed September 16, 1886. Serial No. 213,744. (No model.)

To all whom it may concern.-

Be it known that we, AARON P. BALDWIN and THOMAS L.\SEDGWIOK, citizensof the United States, residing at Akron, in the county of Summit andState of Ohio, have invented a new and useful Improvement in Machinesfor Straightening and Polishing Metallic Shafting,

of which the following is a specification.

In the drawings forming apart hereof, Figure 1 is a side elevation ofthe machine. Fig. 2 is a plan of the same. Fig. 3 is a cross-section, onan enlarged scale, of the polisher at line 2 in Fig. 1; and Fig. 4is asimilar section of the straightener at line 1 in Fig. 1. Fig. 5 isalongitudinal vertical section of the polisher. Fig; 6 is a planof thepolisher with the hinged parts b removed, and Fig. 7 is a longitudinalvertical section of a part of the straightener through its axis.

. journalsb b, and is rotated in bearings d d by set-screws 0 0 The partof the machine which straightens the shaft-ing, and which is termed aflier, a, is formed with hollow journals a a, and is rotated by means ofpulley p in bearings d d. It is provided with dies 0, arranged inalternate order on opposite sides of the axis of the flier. They areadjustable between the side bars, a, of flier a and holders 0 by meansof Side bar, a", is formed with a slot, a through which holders 0 areadjustably bolted. Polisher bis formed with hollow means of pulley g. Ithas hinged sides or parts I)", which contain the polishing'blocks E,rubber cushion E, and a metal plate or follower, E We prefer to makeblocks E of wood, with the grain parallel with the axis of the polisher,as their inner ends will absorb or take up emery that should be put fromtime to time on the shafting and acquire a good polishingsurface. Theyare adjustably held by nut a and screw-bolt h, which is inserted intheir outer ends through follower E and cushion E and by set-screws n nagainst the follower. They are also to some extent self-adj ustable bymeans of the elastic cushion E. When the hinged parts I) are closed, theinner ends of blocks E are brought against the shaft which is to bepolished. Parts b are locked or held in position by means of the hingedpin s,forn1e d with a head, 8, and provided with spring 8 and with slotsmm m for pin 8 to enter, and one of parts 1') is formed with a recess,m, in which cam o rests when parts I) are locked in the position shownin Fig. 3, whereby pin 8 is prevented from becoming dislodged. When cam0 is turned from said position a half-revolution, cam 0 may be liftedfrom recess m and pin 8 swung on its hinge out of slots at m m, and thenparts I) may be opened to allow ac cess to blocks E.

There are three sets of feed-rolls, i 2', one set between flier a andpolisher b and the other two at the ends of the machine. They aresupported by frame f, and are rotated by means of toothed wheels 1" i,worm-Wheels i worms n, shaft 0", and pulley Z. Guide-rolls o v are forthe purpose of steadying shaft wand lessening its vibration .while it isbeing operated on by flier a and polisher b. The shaft 00 is to be fedthrough flier a to polisher b, and is operated on by themsimultaneously. The flier should be rotated at a much higher speed thanthe polisher and in an opposite direction from the cams o 0. Polisher band parts I) are formed 7 1. A machine for straightening and polishingmetallic shafting, having a flier provided with straightening-diesarranged alternately on opposite sides of the said shafting and re-.

volving around the same, and a polisher in on opposite sides of saidshafting and revolv ing around the same, and a polisher arranged inaxial line with said flier, and each having rotation in the oppositedirection from the other, substantially as described.

3. The flier a and polisher b, in combination at each end of the machinewith feed-rolls z z, wheels 0" i, Worm-wheel i, and worm n, and

with shaft 0 pulley Z, and a suitable frame,f,

5 substantially as described.

4. The flier a, having side bars, a, formed with slots a and providedwith dies 0, setscrews 0 c and holders 0, bolted to bars a through saidslot, and pulley 12, substantially IO as described.

5. The polisher I), having hinged sides b N, formed to contain blocks EE, slots m m m, recess m, hinged pin 8, having head s, and provided withspring 8 and cams 0 0, substan- 1 tially as described.

6. The polisher 1), containing, and in combination with, blocks E,rubber cushions E, and follower E, and set-screws n, substantially asdescribed.

7. The polisher 1), containing, and in com- 20 bination with, blocks E,rubber cushions E, follower E", set-screws n, screw-bolt h, and nut n,substantially as described.

A. P. BALDWIN. THOS. L. SEDGWIGK.

Vitnesses:

J. A. LONG, FRED BIsHoP.

